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I have two images from very different cameras. cv::Mat CameraA is from a 16mm lens, and the resolution is 1920 * 1080 cv::Mat CameraB is from a 7mm lens, and the resolution is 1280 * 720

I have calibrated these, and used a chessboard with solvePnP to get poses.

Now, i want to pass these into a bundle adjustment function, using cvsba.

BUT, the function expects the same intrinsics from both cameras.

If I was to use findHomography to get an H matrix from the sets of 2d points, and then scale CameraA to match CameraB, would I then be able to use the intrinsics from CameraB for CameraA?

If not, is there a way to somehow 'normalise' intrinsics in this way?

Thank you.

I have two images from very different cameras.

cv::Mat CameraA is from a 16mm lens, and the resolution is 1920 * 1080
cv::Mat CameraB is from a 7mm lens, and the resolution is 1280 * 720
720

I have calibrated these, and used a chessboard with solvePnP to get poses.

Now, i want to pass these into a bundle adjustment function, using cvsba.

BUT, the function expects the same intrinsics from both cameras.

If I was to use findHomography to get an H matrix from the sets of 2d points, and then scale CameraA to match CameraB, would I then be able to use the intrinsics from CameraB for CameraA?

If not, is there a way to somehow 'normalise' intrinsics in this way?

Thank you.